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LoongArch: Move __arch_cpu_idle() to .cpuidle.text section

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Now arch_cpu_idle() is annotated with __cpuidle which means it is in
the .cpuidle.text section, but __arch_cpu_idle() isn't. Thus, fix the
missing .cpuidle.text section assignment for __arch_cpu_idle() in order
to correct backtracing with nmi_backtrace().

The principle is similar to the commit 97c8580e85 ("MIPS: Annotate
cpu_wait implementations with __cpuidle")

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2025-05-14 22:17:52 +08:00
parent 90436d2342
commit 3e245b7b74
1 changed files with 5 additions and 2 deletions
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7
arch/loongarch/kernel/genex.S
View file

@ -16,6 +16,7 @@
#include <asm/stackframe.h>
#include <asm/thread_info.h>
.section .cpuidle.text, "ax"
.align 5
SYM_FUNC_START(__arch_cpu_idle)
/* start of idle interrupt region */
@ -31,14 +32,16 @@ SYM_FUNC_START(__arch_cpu_idle)
*/
idle 0
/* end of idle interrupt region */
1: jr ra
idle_exit:
jr ra
SYM_FUNC_END(__arch_cpu_idle)
.previous
SYM_CODE_START(handle_vint)
UNWIND_HINT_UNDEFINED
BACKUP_T0T1
SAVE_ALL
la_abs t1, 1b
la_abs t1, idle_exit
LONG_L t0, sp, PT_ERA
/* 3 instructions idle interrupt region */
ori t0, t0, 0b1100